135162081 has 8 divisors (see below), whose sum is σ = 200240160. Its totient is φ = 90108036.

The previous prime is 135162043. The next prime is 135162089. The reversal of 135162081 is 180261531.

135162081 is a `hidden beast` number, since 1 + 35 + 1 + 620 + 8 + 1 = 666.

It is not a de Polignac number, because 135162081 - 2⁶ = 135162017 is a prime.

It is a super-2 number, since 2×135162081² = 36537576280501122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 5006003 = 135162081 / (1 + 3 + 5 + 1 + 6 + 2 + 0 + 8 + 1).

It is not an unprimeable number, because it can be changed into a prime (135162089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2502975 + ... + 2503028.

It is an arithmetic number, because the mean of its divisors is an integer number (25030020).

Almost surely, 2^135162081 is an apocalyptic number.

It is an amenable number.

135162081 is a deficient number, since it is larger than the sum of its proper divisors (65078079).

135162081 is an equidigital number, since it uses as much as digits as its factorization.

135162081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5006012 (or 5006006 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 135162081 is about 11625.9228020833. The cubic root of 135162081 is about 513.1980016090.

The spelling of 135162081 in words is "one hundred thirty-five million, one hundred sixty-two thousand, eighty-one".